After the combat ability she has demonstrated in the previous battle, I would either favor high yield weaponry that could possibly overwhelm her defenses/render evasion pointless or at least attempt targeting from extreme range if I were the military at this point. Numbers and repeated assaults would be an alternative effective method as her supplies will diminish over time and there no doubt a limit to her ability to repair damage, but I suspect the costs of the military's efforts to defeat her will explode rapidly regardless of how they go about it.